I have the SF L2 and I love it. It is a bit longer than other lights in it's class. If I had to do it over again, I'd probably go with the shorter L4 and spend a little extra to get an aftermarket switch, I believe it's called the McE2s, that enables two light levels.

But it works great, and I use it all the time. It helps that I'm using 14650 Li-Ion rechargable batteries in it. They've probably paid for themselves twice over since I've been using them.